Mastering MP3 Player Busy Pin with Arduino & Audio-Visual Synchronization

Explore the often-overlooked busy pin feature of the MP3 player module (MP3-TF-16P or DFPlayer mini) in this comprehensive tutorail, ideal for hobbyists and Arduino enthusiasts.
This third installment in our MP3 module series delves into practical applications like audio-visual synchronization, playback management, and user interface feedback, elevating your DIY projects to new heights.
Follow step-by-step instructions for wiring, coding, and integrating components like Neopixels for dynamic audio-responsive displays. Whether you're a beginner or an experienced tinkerer, this video will unlock new possibilities in your creative journey with microcontrollers.

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Chapters:
0:00 Introduction to the Project
0:56 Step-by-Step Wiring: MP3 Module, Speaker, and Arduino Uno
1:50 Preparing the Micro SD Card for Use
3:49 Programming Tutorial: Playing an Audio File
6:56 Understanding the Busy Pin: A Guide
7:34 Detailed Wiring Guide for the Busy Pin
7:47 Programming Insights: Reading the Busy Pin
8:40 Implementing Code for LED Indicators During Audio Playback
10:00 Connecting Neopixels: Wiring Instructions
11:02 Programming Neopixels: Syncing Lights with Audio Playback

#ArduinoProjects #MP3Module #Microcontrollers #DIYElectronics #ArduinoUno #AudioVisualSync #HobbyistElectronics #MakerCommunity #CodingTutorial #TechDIY #tutorial

[sbrivas]

Awesome job, man! Greetings from Argentina 🎉 Canada is such a beatiful country! Recently visited Montreal and Ottawa with my family.

[richardphillips]

I enjoyed adding the functionality of the MP3_Rotary with the features of this MP3_busy_pin allowing me to use the rotary encoder. It was a good experience figuring out the library differences and how to incorporate the logic between the two sketches. Thank you.

[Mokkers_stuff]

Excellent video, easy to follow, clearly explained and no annoying background music to distract you! Thanks for uploading and, yes, I made it to the end. 👍

[DAveShillito]

Nice video 😀
I liked how, due to the nature of the sound, the random neopixels seemed to match the audio, even though they were just random
👍

[NerdAffiliated]

This video is absolutely amazing! Thank you making everything so easy to follow, with graphics!

[raimundtrierscheid]

Super video with very structured and helpful explanation of code and wiring - all thumbs up !!

[robgreen]

Excellent tutorial. Well paced and easy to follow with plenty of visual aids.

[Dog-mc-build]

You are a life saver now i can use it more efficiently in my home assistant project on science fair

[yorhab]

Yeah, I made it all the way to the end. Keep sharing your great work.

[DaveHoran]

These videos are great. I built a very simple MP3 player as a prototype for a museum, but just used buttons to trigger the DFplayer playback functions -- no MCU needed. Easy enough. Now I'm changing it up to use an Arduino Nano, and it will be used in a special project. Working with a local museum, I'm working on replacing the internal components of a WWII aircraft radio so while in flight, visitors can listen to radio recordings of D-Day from what appears to be a vintage radio. The hardest part of reusing the controls on the radio to to control audio playback.

[tom]

Thank you for this. I watched the entire video and enjoyed the detail within it.

[paulmarkert]

This is a great video, thanks for putting it out there. I cannot replicate the behavior you have around the Busy PIN (minute 7:44) without removing the resistor/LED path from the circuit, though. Once I do, I get 'Busy Pin=1' and the "Audio file finished playing" message. I am not sure why I don't have enough voltage to trigger HIGH and power the LED path at the same time. I am connected to the 5V power, so that shouldn't be the issue. I now suspect I may have a defective DFPlayer mini and have ordered some new MP3-TF-16P players to see if that is the issue.

[LowerDeckProps]

Good video, Charles. You've given me more things to think about for future projects.

[patrickfox-roberts]

Great vid, gonna use it ... a suggestion for your very good English 'Busy' is not said as 'Buzzy' it is a ' B ih zzy' like silly or willy, missy, kissy or Milly. 'Fizzy' is the best comparison, fizzy, busy, fizzy, busy they rhyme - English is nuts, sorry lol

[Bochets]

Well done❤. Just curious: which SW tool do you use for drawing the wiring at the beginnin (step by step 2nd chapter). This is awesome

[ShayanBinShad]

Hi and thank you so much for such a helpful video! I have a 5 watt / 8 ohms speaker that i want to use for a project. Will it be okay if I connect the speaker to the DFPlayer Mini module? Or do i need an amplifier?

[liszcgsedt]

This is going to be perfect for a HAL9000 speaker emulation. The pulsating neopixels, that is.

[ytenyusuf]

Sorry sir, if the sound input comes from the original buzzer out of the car parking sensor, how do i wire it and code it? 🙏 thanks

[Lufton]

2:00 mine works just fine with 128Gb card.

[DatFunnyPerson]

I'm thinking about something similar. I'm building a jetpack and there's a servo triggering the smoke machine (canned air cans) and at the same time I want neopixels to light up . Any ideas?